diff --git a/rpc/src/v1/impls/ethcore.rs b/rpc/src/v1/impls/ethcore.rs
index 492f5810c..7b02c7f78 100644
--- a/rpc/src/v1/impls/ethcore.rs
+++ b/rpc/src/v1/impls/ethcore.rs
@@ -17,6 +17,7 @@
 //! Ethcore-specific rpc implementation.
 use util::{U256, Address, RotatingLogger};
 use util::network_settings::NetworkSettings;
+use util::misc::version_data;
 use std::sync::{Arc, Weak};
 use std::ops::Deref;
 use std::collections::BTreeMap;
@@ -129,4 +130,9 @@ impl<M> Ethcore for EthcoreClient<M> where M: MinerService + 'static {
 		map.insert("port".to_owned(), Value::U64(self.settings.rpc_port as u64));
 		Ok(Value::Object(map))
 	}
+
+	fn default_extra_data(&self, _params: Params) -> Result<Value, Error> {
+		let version = version_data();
+		to_value(&version)
+	}
 }
diff --git a/rpc/src/v1/traits/ethcore.rs b/rpc/src/v1/traits/ethcore.rs
index 9aab17b4c..2a2159bd9 100644
--- a/rpc/src/v1/traits/ethcore.rs
+++ b/rpc/src/v1/traits/ethcore.rs
@@ -69,6 +69,10 @@ pub trait Ethcore: Sized + Send + Sync + 'static {
 	/// Returns node name
 	fn node_name(&self, _: Params) -> Result<Value, Error> { rpc_unimplemented!() }
 
+	/// Returns default extra data
+	fn default_extra_data(&self, _: Params) -> Result<Value, Error> { rpc_unimplemented!() }
+
+
 	/// Should be used to convert object to io delegate.
 	fn to_delegate(self) -> IoDelegate<Self> {
 		let mut delegate = IoDelegate::new(Arc::new(self));
@@ -89,6 +93,7 @@ pub trait Ethcore: Sized + Send + Sync + 'static {
 		delegate.add_method("ethcore_netPort", Ethcore::net_port);
 		delegate.add_method("ethcore_rpcSettings", Ethcore::rpc_settings);
 		delegate.add_method("ethcore_nodeName", Ethcore::node_name);
+		delegate.add_method("ethcore_defaultExtraData", Ethcore::default_extra_data);
 
 		delegate
 	}